Oh Bowethane, that's great! And you might like to know I already have some of them!
We have the "One small step" with an astronaut picture laminated, which is what got me thinking of others! I was trying ot think of one for Bede and I love the idea of the Years of Grace
Here are the ones I have thought of, just to see if it nudges any more thoughts. They aren't such poetic phrases, but that can be dealt with

• The Staffordshire Hoard, found in 2009, totals about 5 kg of gold, 1 ½ kg of silver and 3,500 cloisonné garnets
• Offa’s Dyke, which was built on the orders of King Offa of Mercia (757-796), is 140 miles long and can still be seen in some places today
• Bede (672-735) wrote over 60 books during his life, most of which have survived
• King Alfred (849-899) is the only English monarch to be given the title of “Great”
• The nickname of Ethelred II, “the Unready”, really means “ill-advised”
• Although Augustine was sent by Pope Gregory the Great in 597 to bring Christianity to Britain, there were already Christian communities in the country established by the Romans or by Irish missionaries
• The “Bayeux Tapestry” is actually an embroidery and was sewn by English craftswomen in the 1070s, only a few years after the Battle of Hastings
• The “Codex Amiatinus”, weighing over 75 lbs (34 kg), is the earliest surviving manuscript of the Latin Bible in the world and was produced in Northumbria around 700
I agree with you about the embroidery - it was the Designer Must Have of the day as I understand it, eg the maniple and stole of St Cuthbert, and the Maaseik embroideries. I also read that a cope and two chasubles burnt in the 14th century recovered over two hundred and fifty pounds worth of gold, and that many items were burnt for that reason. (I should probably add that as another fact...)
Phyllis